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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Tue, 29 Sep 2026 20:19:01 +0000</lastBuildDate>
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      <title>CVE-2026-64094 — batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-64094</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface&lt;/p&gt;
&lt;p&gt;Without rtnl_lock held, a hardif might be retrieved as primary interface of
a meshif, but then (while operating on this interface) getting decoupled
from the mesh interface. In this case, the meshif still exists but the
pointer from the primary hardif to the meshif is set to NULL.&lt;/p&gt;
&lt;p&gt;The mesh_iface must be checked first to be non-NULL before continuing to
send an ARP request using meshif.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface&lt;/p&gt;
&lt;p&gt;Without rtnl_lock held, a hardif might be retrieved as primary interface of
a meshif, but then (while operating on this interface) getting decoupled
from the mesh interface. In this case, the meshif still exists but the
pointer from the primary hardif to the meshif is set to NULL.&lt;/p&gt;
&lt;p&gt;The mesh_iface must be checked first to be non-NULL before continuing to
send an ARP request using meshif.&lt;/p&gt;</content:encoded>
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